I bought a AU750 diamond ring with a value of about 3K at 10.1 on Saturday. There are jewelry appraisal centers for appraisal certificates and invoices, but my wife brought about a week, so gold began to turn white. Is this fake? If it wasn't for the reason? how should I solve this?
2 thoughts on “Why does the AU750 gold diamond ring turn white?”
Leave a Comment
You must be logged in to post a comment.
It should be that the surface gold coating was grinded, and the 750 inside came out, which was normal. The AU750 is 750 tenth of the gold content, and the remaining 250 is other metals, so it is not pure gold. The diamond ring is basically inlaid. You can find the jewelry processing factory from the new plating.
AU750 gold is also called 18K gold, which is alloy, containing 75%gold, not pure gold. Because 18K gold has a large hardness, it is generally 18K gold for inlay diamonds. The 18K golden texture is green, not golden yellow, and it may be grinded off the coating with transformation, exposing the original color. In this case, you can find a merchant to negotiate and let them re -plating. You can restore the color of the color. Yi Duo Jewelry Answer